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Motorola Electronic Components Datasheet

MC54F242 Datasheet

QUAD BUS TRANCEIVERS

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MC54F242 pdf
QUAD BUS TRANCEIVERS
WITH 3-STATE OUTPUTS
The MC54/74F242 and MC54/74F243 are Quad Bus Transmitters/Receiv-
ers designed for 4-line asynchronous 2-way data communication between
data buses.
2-Way Asynchronous Data Bus Communication
Input Clamp Diodes Limit High-Speed Termination Effects
ESD > 4000 Volts
MC54/74F242 (TOP VIEW)
VCC OE2 NC 1B 2B 3B
14 13 12 11 10
9
4B
8
MC54/74F242
MC54/74F243
QUAD BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
FASTSCHOTTKY TTL
14
1
J SUFFIX
CERAMIC
CASE 632-08
12
OE1 NC
34
1A 2A
567
3A 4A GND
MC54/74F243 (TOP VIEW)
VCC OE2 NC 1B
2B 3B
14 13 12 11 10
9
4B
8
14
1
N SUFFIX
PLASTIC
CASE 646-06
14
1
D SUFFIX
SOIC
CASE 751A-02
ORDERING INFORMATION
MC54FXXXJ
MC74FXXXN
MC74FXXXD
Ceramic
Plastic
SOIC
12
OE1 NC
34
1A 2A
567
3A 4A GND
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
TA
Supply Voltage
Operating Ambient TemperatureRange
IOH Output Current — High
IOL Output Current — Low
54,74
54
74
54
74
54
74
Min
4.5
–55
0
FAST AND LS TTL DATA
4-187
Typ Max
5.0 5.5
25 125
25 70
–12
–15
48
64
Unit
V
°C
mA
mA


Motorola Electronic Components Datasheet

MC54F242 Datasheet

QUAD BUS TRANCEIVERS

No Preview Available !

MC54F242 pdf
MC54/74F242 MC54/74F243
FUNCTION TABLE – MC54/74F242
FUNCTION TABLE – MC54/74F243
Inputs
Inputs
Inputs
Inputs
OE1 D
LL
Output OE2 D
H LX
Output
Z
OE1 D
LL
Output OE2 D
L LX
Output
Z
LH L LX Z
LH H LX Z
HX Z HL H
HX Z HL L
HX Z HH L
HX Z HH H
H = HIGH Voltage Level; L = LOW Voltage Level ; X = Don’t Care; Z = HIGH Impedance
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Limits
Symbol
Parameter
Min Typ Max Unit
Test Conditions
VIH
VIL
VIK
VOH
VOL
IOZH
IOZL
IIH
IIL
IOS
Input HIGH voltage
Input LOW Voltage
Input Clamp Diode Voltage
Output HIGH Voltage
Output LOW Voltage
Output Off Current HIGH
2.0
54
74
54, 74
74
54
74
2.0
2.0
2.4
2.7
Output Off Current LOW
Input HIGH Current
Input LOW Current
Output Short Circuit Current
(Note 2)
Enable
Data
Data
Enable
Enable
Data
74
54
–100
–100
V Guaranteed Input HIGH Voltage
0.8 V Guaranteed Input LOW Voltage
–1.2 V IIN = –18 mA
V IOH = –12 mA
V IOH = –15 mA
V IOH = –3.0 mA
V IOH = –3.0 mA
0.55 V IOL = 48 mA
0.55 V IOL = 64 mA
70 µA VOUT = 2.7 V
1.0 mA VOUT = 5.5 V
–1.6 mA VOUT = 0.5 V
20 µA VIN = 2.7 V
70 µA VIN = 2.7 V
1.0 mA VIN = 5.5 V
0.1 mA VIN = 7.0 V
-1.0 mA VIN = 0.5 V
-1.6 mA VIN = 0.5 V
–225 mA VOUT = 0 V
–275 mA
VCC = MIN
VCC = 4.50 V
VCC = 4.50 V
VCC = 4.50 V
VCC = 4.75 V
VCC = MIN
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
VCC = MAX
ICCH
Power Supply
Current HIGH
F242
F243
60 mA Outputs
80 mA HIGH
VCC = MAX
ICCL
Power Supply
Current LOW
F242
F243
75 mA Outputs
90 mA LOW
VCC = MAX
ICCZ
Power Supply
Current OFF
F242
F243
75 mA Outputs
90 mA OFF
VCC = MAX
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
FAST AND LS TTL DATA
4-188


Part Number MC54F242
Description QUAD BUS TRANCEIVERS
Maker Motorola
Total Page 5 Pages
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